You'll have to be more descriptive and provide screenshots. Just saying it doesn't work isn't realyl telling anything to anyone here. System specs? Waht footages? Comp settings? Also, does it run at all and do you actually see the background process in your task manager? could simply be a permissions problem where the effect cannot connect to the BG process...

You didn't say anything about your comp settings, framerates etc. and what the sources actually are. All I know is that you are running on Windows 7 64bit and that's not much to go on. Especially if you were working with sources liek AVCHD, other issues utterly unrelated to the stabilizer itself might figure in. So anything you can do to clarify will help. IOn fact I think that might be the problem, after all, here - choosing "No Motion" may cause AE not to properly decode the footage and then the background instance has nothing to work with. Normalyl this would then relate to a media cache issue or something being awry with multiprocessing settings, so as a minor, look into that...